The removal of Rhodamine B from aqueous solution using manganese oxide modified vermiculite
In this study, we prepared and used manganese oxide-modified vermiculite (Mn–MV) as an adsorbent to sequester Rhodamine B (RhB) dye from aqueous solution. Mn–MV was characterized using a Fourier transform infrared (FT-IR) spectrometer, XRF spectrometry and scanning electron microscope (SEM) to ident...
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| Format: | Article |
| Language: | English |
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Elsevier
2024-01-01
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| Series: | South African Journal of Chemical Engineering |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S1026918523001051 |
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| author | Livingstone Chauke Emmanuel Christopher Umejuru Rebecca Oyedoyin Adeeyo Joshua Nosa Edokpayi |
| author_facet | Livingstone Chauke Emmanuel Christopher Umejuru Rebecca Oyedoyin Adeeyo Joshua Nosa Edokpayi |
| author_sort | Livingstone Chauke |
| collection | DOAJ |
| description | In this study, we prepared and used manganese oxide-modified vermiculite (Mn–MV) as an adsorbent to sequester Rhodamine B (RhB) dye from aqueous solution. Mn–MV was characterized using a Fourier transform infrared (FT-IR) spectrometer, XRF spectrometry and scanning electron microscope (SEM) to identify the functional groups, components and morphology of the sorbent. Analysis of the adsorbent's functional groups revealed the presence of O–H, C–H, C=C, C–O, and C–O–H groups. The experiments were conducted using a batch adsorption procedure. The optimal removal of Rhodamine B (RhB) was achieved with a dosage of 1.75 g of Mn–MV, a pH of 10, and a duration of 45 min. The study on the effect of temperature demonstrated that an increase in temperature favoured the removal of RhB using Mn–MV. The data from the kinetic and isotherm models were best described by the pseudo-second-order and Langmuir models. The thermodynamic parameters, ∆H = 6.32 kJ/mol and ∆S = 82.12 J/mol/K, indicate that the adsorption process is endothermic and spontaneous. These results indicate that vermiculite clay has the potential to be a cost-effective adsorbent for the removal of RhB dye. |
| first_indexed | 2024-03-08T12:52:45Z |
| format | Article |
| id | doaj.art-cb03e159bf3e4f978560613b7509fece |
| institution | Directory Open Access Journal |
| issn | 1026-9185 |
| language | English |
| last_indexed | 2024-03-08T12:52:45Z |
| publishDate | 2024-01-01 |
| publisher | Elsevier |
| record_format | Article |
| series | South African Journal of Chemical Engineering |
| spelling | doaj.art-cb03e159bf3e4f978560613b7509fece2024-01-20T04:44:32ZengElsevierSouth African Journal of Chemical Engineering1026-91852024-01-0147159168The removal of Rhodamine B from aqueous solution using manganese oxide modified vermiculiteLivingstone Chauke0Emmanuel Christopher Umejuru1Rebecca Oyedoyin Adeeyo2Joshua Nosa Edokpayi3Department of Earth Sciences, Faculty of Science, Engineering and Agriculture, University of Venda, Thohoyandou, 0950, South AfricaWater and Environmental Management Research Group, Faculty of Science, Engineering and Agriculture, University of Venda, Thohoyandou, 0950, South AfricaWater and Environmental Management Research Group, Faculty of Science, Engineering and Agriculture, University of Venda, Thohoyandou, 0950, South AfricaWater and Environmental Management Research Group, Faculty of Science, Engineering and Agriculture, University of Venda, Thohoyandou, 0950, South Africa; Corresponding author.In this study, we prepared and used manganese oxide-modified vermiculite (Mn–MV) as an adsorbent to sequester Rhodamine B (RhB) dye from aqueous solution. Mn–MV was characterized using a Fourier transform infrared (FT-IR) spectrometer, XRF spectrometry and scanning electron microscope (SEM) to identify the functional groups, components and morphology of the sorbent. Analysis of the adsorbent's functional groups revealed the presence of O–H, C–H, C=C, C–O, and C–O–H groups. The experiments were conducted using a batch adsorption procedure. The optimal removal of Rhodamine B (RhB) was achieved with a dosage of 1.75 g of Mn–MV, a pH of 10, and a duration of 45 min. The study on the effect of temperature demonstrated that an increase in temperature favoured the removal of RhB using Mn–MV. The data from the kinetic and isotherm models were best described by the pseudo-second-order and Langmuir models. The thermodynamic parameters, ∆H = 6.32 kJ/mol and ∆S = 82.12 J/mol/K, indicate that the adsorption process is endothermic and spontaneous. These results indicate that vermiculite clay has the potential to be a cost-effective adsorbent for the removal of RhB dye.http://www.sciencedirect.com/science/article/pii/S1026918523001051AdsorptionDye removalEquilibriumKineticsRhodamine BVermiculite |
| spellingShingle | Livingstone Chauke Emmanuel Christopher Umejuru Rebecca Oyedoyin Adeeyo Joshua Nosa Edokpayi The removal of Rhodamine B from aqueous solution using manganese oxide modified vermiculite South African Journal of Chemical Engineering Adsorption Dye removal Equilibrium Kinetics Rhodamine B Vermiculite |
| title | The removal of Rhodamine B from aqueous solution using manganese oxide modified vermiculite |
| title_full | The removal of Rhodamine B from aqueous solution using manganese oxide modified vermiculite |
| title_fullStr | The removal of Rhodamine B from aqueous solution using manganese oxide modified vermiculite |
| title_full_unstemmed | The removal of Rhodamine B from aqueous solution using manganese oxide modified vermiculite |
| title_short | The removal of Rhodamine B from aqueous solution using manganese oxide modified vermiculite |
| title_sort | removal of rhodamine b from aqueous solution using manganese oxide modified vermiculite |
| topic | Adsorption Dye removal Equilibrium Kinetics Rhodamine B Vermiculite |
| url | http://www.sciencedirect.com/science/article/pii/S1026918523001051 |
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